MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2ec90df668caec1d94c3d787e8fd915567888788938e14ca0a86dcda9c8124eb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

njrat

Vendor detections: 13

Intelligence 13 IOCs 5 YARA 13 File information Comments

SHA256 hash:	2ec90df668caec1d94c3d787e8fd915567888788938e14ca0a86dcda9c8124eb
SHA3-384 hash:	75c7c474e7e2d6b8c95cdcce14c1674cea873e4e0bc87b548b3eefe3ac44744cbf02ae42c97c7f7df86238fe9cbc3a87
SHA1 hash:	d1c5d8cb00e8ab6f41429efcea4c26c10e2a32fb
MD5 hash:	a58c94f7cedbf12a9de75d4565c45387
humanhash:	freddie-summer-cat-hamper
File name:	a58c94f7cedbf12a9de75d4565c45387.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	32'256 bytes
First seen:	2022-03-23 01:11:50 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'364 x AgentTesla, 20'869 x Formbook, 12'418 x SnakeKeylogger)
ssdeep	768:XHwoqkZlH/azx1+ta+q3U97v8+QmIDUu0ti53sj:i4qSp7QVknj
Threatray	507 similar samples on MalwareBazaar
TLSH	T198E22A6DFBF64466D2BC0AB50571950013B8E003E523F77E4ECA24E62B6B6D84B94DF2
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
13.58.157.220:17899

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
13.58.157.220:17899	https://threatfox.abuse.ch/ioc/440918/
3.142.81.166:17899	https://threatfox.abuse.ch/ioc/440919/
3.19.130.43:17899	https://threatfox.abuse.ch/ioc/440920/
3.142.167.54:17899	https://threatfox.abuse.ch/ioc/440921/
3.142.129.56:17899	https://threatfox.abuse.ch/ioc/440922/

Intelligence

File Origin

# of uploads :

# of downloads :

384

Origin country :

n/a

Vendor Threat Intelligence

Detection:

njRat

Link:

https://www.capesandbox.com/analysis/255223/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a process with a hidden window

Creating a window

Searching for synchronization primitives

DNS request

Using the Windows Management Instrumentation requests

Sending a custom TCP request

Launching the process to change the firewall settings

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm bladabindi cmd.exe control.exe fingerprint greyware keylogger netsh.exe njrat obfuscated packed rat replace.exe stealer update.exe winnti

Link:

https://www.filescan.io/uploads/623a73f00cd58dbd92db3cff/reports/677df33c-ceeb-4d98-8050-f0574888cd78/overview

Malware family:

njRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/3fd37b47-6dba-4287-9281-5d1239d9b044

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/962235

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to log keystrokes (.Net Source)

Creates autostart registry keys with suspicious names

Detected njRat

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies the windows firewall

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Uses netsh to modify the Windows network and firewall settings

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/2ec90df668caec1d94c3d787e8fd915567888788938e14ca0a86dcda9c8124eb/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2022-03-21 19:17:28 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

37 of 42 (88.10%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=f3eq35tizlwb3fgd26d6r7mrkvtyrb4isohbjsqkq3onvhebetvq._file

Verdict:

malicious

Label(s):

njrat

1c5952df10f0fdb566f748c18ef3b101825937c75cd26fa716a79298dbb343db

njrat

285b6700d98397dafa08816710eec9724407d49e270245e9a994c5ee8f9a40b4

njrat

309def552c446ea54ce932da7546242ccf13b5878c44a9b7f7b23237ff5d1edb

njrat

434c3b5ab0a2b53e04e4cdf6df69ab626919e3f5b9cffde95e178fe975d463b4

njrat

54622fa73246157a2e25e418d554d5ccafc663151ac067819d18f48caad9a32c

njrat

d62f0e86c54f465b93bdab28f2ccc770999db63f8c69c937afcf66f9029eae3f

njrat

+ 497 additional samples on MalwareBazaar

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat botnet:mybot evasion persistence trojan

Link:

https://tria.ge/reports/220323-bkl79sdbf3/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Adds Run key to start application

Modifies Windows Firewall

njRAT/Bladabindi

Malware Config

C2 Extraction:

8.tcp.ngrok.io:17899

Unpacked files

SH256 hash:

2ec90df668caec1d94c3d787e8fd915567888788938e14ca0a86dcda9c8124eb

MD5 hash:

a58c94f7cedbf12a9de75d4565c45387

SHA1 hash:

d1c5d8cb00e8ab6f41429efcea4c26c10e2a32fb

Detections:

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/5dbd83a3-b9b7-4c52-aeb0-90e78bd78840/

Malware family:

Winnti Group

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/2ec90df668ca/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/2ec90df668caec1d94c3d787e8fd915567888788938e14ca0a86dcda9c8124eb

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	CN_disclosed_20180208_c Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	CN_disclosed_20180208_c_RID2E71 Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146

Rule name:	malware_Njrat_strings Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	MALWARE_Win_NjRAT Create hunting rule
Author:	ditekSHen
Description:	Detects NjRAT / Bladabindi

Rule name:	MAL_njrat Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	MAL_Winnti_Sample_May18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:	https://401trg.pw/burning-umbrella/

Rule name:	MAL_Winnti_Sample_May18_1_RID3003 Create hunting rule
Author:	Florian Roth
Description:	Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:	https://401trg.pw/burning-umbrella/

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_LightDefender_Njrat_Rule Create hunting rule
Author:	Skystars LightDefender
Description:	Detects Njrat

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_netsh_firewall_command Create hunting rule
Author:	SECUINFRA Falcon Team

Rule name:	SUSP_Ngrok_URL Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel

Rule name:	win_njrat_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:	Identify njRat

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/255223/

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